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DU PONT ANNOUNCES COMMERCIAL AVAILABILITY OF CFC ALTERNATIVES

 DU PONT ANNOUNCES COMMERCIAL AVAILABILITY OF CFC ALTERNATIVES
 WILMINGTON, Del., Sept. 22 /PRNewswire/ -- Du Pont (NYSE: DD) has announced commercial availability of three products to replace chlorofluorocarbons (CFCs) in commercial refrigeration applications such as supermarket display cases and freezers, in refrigerated transport systems and in ice-making machines.
 The nonflammable substitutes are the latest additions to Du Pont's family of "Suva" refrigerants and follow start-up of the company's facility in Deepwater, N.J., to produce millions of pounds annually of hydrofluorocarbon (HFC)-125.
 Two of the products, "Suva" HP80 and "Suva" HP81, are blends of hydrochlorofluorocarbon (HCFC)-22, HFC-125 and propane (R-290). They are 90 percent less ozone depleting than R-502, the CFC-containing product they replace, and offer an 80 percent reduction in global warming potential.
 The third alternative, "Suva" 125, is a non-ozone-depleting product targeted to replace R-502 in other low temperature applications.
 "These latest products offer supermarkets, in particular, an immediate option to move away from the CFC-based R-502," said Joseph P. Glas, vice president and general manager - Fluorochemicals. "The easy equipment conversions these substitutes provide make the CFC phaseout much more feasible in the critical food supply industry."
 Du Pont's "Suva" HP refrigerants will minimize the cost for servicing existing systems because only limited changes are required in the conversion process.
 HFC-125 is targeted primarily for use in new equipment. It also is under development for use in sterilant gas applications.
 In 1993, Du Pont will commercialize "Suva" HP62, a non-ozone- depleting blend of HFC-143a, HFC-125 and HFC-134a. The product's high energy efficiency makes it the option with the lowest total global warming potential. It will be targeted for new equipment in the same industries currently served by R-502.
 Du Pont has had "Suva" refrigerants commercially available since 1990 and has three commercial-scale plants operating.
 In addition to its "Suva" refrigerants, Du Pont has four other families of CFC substitutes -- "Formacel" foam expansion agents, "Dymel" propellants, "Axarel" cleaning agents and "Solderel" no clean solder paste.
 The company has invested more than $400 million in the development and commercialization of CFC alternatives.
 /delval/
 -0- 9/22/92
 /CONTACT: Catherine L. Andriadis of Du Pont, 302-773-6887/
 (DD) CO: Du Pont ST: Delaware IN: CHM SU:


MK -- PH009 -- 2062 09/22/92 10:03 EDT
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Publication:PR Newswire
Date:Sep 22, 1992
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